DOSSIER · 13F Holders · Q2 2026

COSTCO WHOLESALE CORP COM

1 institutions still hold COSTCO WHOLESALE CORP COM as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 221607104·1 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$655K
visible holders
Holders
1
filers reporting
Concentration
100.00%
Boit C F David #1
top holder share
AI Holders Summary · Q2 2026

1 institutions reported COSTCO WHOLESALE CORP COM in Q2 2026. Boit C F David leads at 100.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Boit C F David
CIK 0001308331
$655K7000.28%Q2 2026